Acura MDX vs Toyota Sienna

Both cars' complete complaint records, side by side.

Read the totals carefully. NHTSA publishes no sales figures, so the car that sold more collects more complaints regardless of quality. The rows worth weighing are the proportions — the share of complaints that involved harm, and which part dominates.

Measure	Acura MDX	Toyota Sienna
Complaints on file	4,699	10,842
Model years covered	2001–2026	1996–2020
Worst model year	2016	2011
Best model year	2026	2020
Crashes reported	223	558
Fires reported	88	117
Injuries reported	154	549
Deaths reported	0	10
Most complained-about part	Transmission & Drivetrain	Body & Structure
Share of complaints involving harm	9.9%	11.4%

Acura MDX by year

266 242 259 243 244 121 126 62 76 63 87 101 46 249 98 530 398 289 308 365 216 60 68 172 10

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 22 23 24 25 26

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Transmission & Drivetrain 986 21.0%

Engine & Cooling 833 17.7%

Electrical System 512 10.9%

Driver Assist & Collision Avoidance 356 7.6%

Other & Unspecified 324 6.9%

Fuel & Propulsion 243 5.2%

Airbags 230 4.9%

Brakes 207 4.4%

Toyota Sienna by year

3 2 352 250 459 238 225 124 2,588 1,418 1,285 450 571 270 227 819 333 227 211 295 98 202 87 58 50

96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

What breaks

Body & Structure 2,804 25.9%

Airbags 886 8.2%

Doors, Latches & Locks 792 7.3%

Electrical System 712 6.6%

Other & Unspecified 618 5.7%

Brakes 591 5.5%

Transmission & Drivetrain 559 5.2%

Engine & Cooling 554 5.1%